package com.atguigu.order.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.atguigu.order.entity.Order;
import com.atguigu.order.entity.PayLog;
import com.atguigu.order.mapper.PayLogMapper;
import com.atguigu.order.service.OrderService;
import com.atguigu.order.service.PayLogService;
import com.atguigu.order.utils.HttpClient;
import com.atguigu.servicebase.exceptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.github.wxpay.sdk.WXPayUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * <p>
 * 支付日志表 服务实现类
 * </p>
 *
 * @author Rayyy666
 * @since 2022-04-20
 */
@Service
public class PayLogServiceImpl extends ServiceImpl<PayLogMapper, PayLog> implements PayLogService {

    @Autowired
    private OrderService orderService;

    /**
     * 根绝订单号，生成微信支付二维码
     *
     * @param orderNo
     * @return
     */
    @Override
    public Map createWxPayERCode(String orderNo) {
        try {
            //1.根据订单号，查询订单信息
            Order order = orderService.getOne(new QueryWrapper<Order>().eq("order_no", orderNo));

            //2.使用map设置二维码需要的参数
            HashMap m = new HashMap<>();
            m.put("appid", "wx74862e0dfcf69954");
            m.put("mch_id", "1558950191");
            m.put("nonce_str", WXPayUtil.generateNonceStr());
            m.put("body", order.getCourseTitle()); //课程名称
            m.put("out_trade_no", orderNo); //订单号
            m.put("total_fee", order.getTotalFee().multiply(new BigDecimal("100")).longValue() + "");//订单价格
            m.put("spbill_create_ip", "127.0.0.1");
            m.put("notify_url", "http://guli.shop/api/order/weixinPay/weixinNotify");
            m.put("trade_type", "NATIVE");

            //3.发送httpclient 请求，传递xml格式的参数 请求微信支付固定的地址
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/unifiedorder");
            //设置xml格式的参数
            client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
            client.setHttps(true); //支持https访问
            //执行post请求发送
            client.post();

            //4.得到发送请求返回的结果
            //返回的内容 使用xml格式返回
            String xml = client.getContent();

            //把xml格式转换成map集合，把map集合返回
            Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);

            //最终返回数据的封装
            Map map = new HashMap<>();
            map.put("out_trade_no", orderNo);
            map.put("course_id", order.getCourseId());
            map.put("total_fee", order.getTotalFee());
            map.put("result_code", resultMap.get("result_code"));//返回二维码操作 状态码
            map.put("code_url", resultMap.get("code_url")); //二维码地址

            return map;
        } catch (Exception e) {
            throw new GuliException(20001, "生二维码失败！");
        }

    }

    /**
     * 查询订单的支付状态
     *
     * @param orderNo
     * @return
     */
    @Override
    public Map<String, String> queryPayStatus(String orderNo) {
        try {
            //1.封装参数
            Map m = new HashMap<>();
            m.put("appid", "wx74862e0dfcf69954");
            m.put("mch_id", "1558950191");
            m.put("out_trade_no", orderNo);
            m.put("nonce_str", WXPayUtil.generateNonceStr());

            //2.发送httpclient 请求
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");
            client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
            client.setHttps(true);
            client.post();

            //得到返回的内容
            String xml = client.getContent();
            Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);

            //转成map 返回
            return resultMap;
        } catch (Exception e) {
            return null;
        }
    }

    /**
     * 添加支付记录，更新订单状态
     *
     * @param map
     */
    @Override
    public void updateOrderStatus(Map<String, String> map) {
        //1.从map里面 获取到  订单号
        String orderNo = map.get("out_trade_no");

        //2.根据订单号 查询订单信息
        Order order = orderService.getOne(new QueryWrapper<Order>().eq("order_no", orderNo));

        //更新 订单表订单状态
        if (order.getStatus().intValue() == 1) {
            return;
        }

        order.setStatus(1); // 1 代表已经支付
        orderService.updateById(order);

        //向支付表 添加 支付记录
        PayLog payLog = new PayLog();
        payLog.setOrderNo(orderNo);// 订单号
        payLog.setPayTime(new Date()); //设置支付完成时间
        payLog.setPayType(1); //支付类型 1代表微信
        payLog.setTotalFee(order.getTotalFee()); //支付总金额
        payLog.setTradeState(map.get("trade_state")); //支付状态
        payLog.setTransactionId(map.get("transaction_id")); //订单支付交易流水号
        payLog.setAttr(JSONObject.toJSONString(map));

        baseMapper.insert(payLog); //插入到支付日志表中
    }
}
